98%calcium carbonate the purity 98%,brightness 92 400 mesh/800 mesh/1250 mesh cnpc brand,factry price near by the port 98%calcium carbonateTECHNICAL DATA1.FEATURES good insulation performance, bear high temperature, high purity near the theoretic component good needle-shape, low ignition loss low content of harmful constituent such as fe2o3, s and p2.MAIN USAGE use in paint, plastics, rubber, ...